blob: bf8a082184e0f79daf445e136933b40a9295d564 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#-----------------------------------------------------------------------------
# set some special flags for different compilers
#
if(WIN32 AND CMAKE_C_COMPILER_ID STREQUAL "Intel")
set(_INTEL_WINDOWS 1)
endif()
if(WIN32 AND CMAKE_C_COMPILER_ID STREQUAL "Clang"
AND "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
set(_CLANG_MSVC_WINDOWS 1)
endif()
# Disable deprecation warnings for standard C functions.
# really only needed for newer versions of VS, but should
# not hurt other versions, and this will work into the
# future
if(MSVC OR _INTEL_WINDOWS OR _CLANG_MSVC_WINDOWS)
add_compile_definitions(_CRT_SECURE_NO_DEPRECATE _CRT_NONSTDC_NO_DEPRECATE)
else()
endif()
if(MSVC)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${CMAKE_CXX_LINKER_WRAPPER_FLAG}-stack:10000000")
endif()
# MSVC 14.28 enables C5105, but the Windows SDK 10.0.18362.0 triggers it.
if(CMAKE_C_COMPILER_ID STREQUAL "MSVC" AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 19.28)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -wd5105")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -wd5105")
endif()
if(_CLANG_MSVC_WINDOWS AND "x${CMAKE_CXX_COMPILER_FRONTEND_VARIANT}" STREQUAL "xGNU")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Xlinker -stack:20000000")
endif()
#silence duplicate symbol warnings on AIX
if(CMAKE_SYSTEM_NAME MATCHES "AIX")
if(NOT CMAKE_COMPILER_IS_GNUCXX)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -bhalt:5 ")
endif()
endif()
if(CMAKE_SYSTEM MATCHES "OSF1-V")
if(NOT CMAKE_COMPILER_IS_GNUCXX)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -timplicit_local -no_implicit_include ")
endif()
endif()
# Workaround for short jump tables on PA-RISC
if(CMAKE_SYSTEM_PROCESSOR MATCHES "^parisc")
if(CMAKE_COMPILER_IS_GNUCC)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mlong-calls")
endif()
if(CMAKE_COMPILER_IS_GNUCXX)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mlong-calls")
endif()
endif()
# Use 64-bit off_t on 32-bit Linux
if (CMAKE_SYSTEM_NAME STREQUAL "Linux" AND CMAKE_SIZEOF_VOID_P EQUAL 4)
# ensure 64bit offsets are used for filesystem accesses for 32bit compilation
add_compile_definitions(_FILE_OFFSET_BITS=64)
endif()
# Workaround for TOC Overflow on ppc64
set(bigTocFlag "")
if(CMAKE_SYSTEM_NAME STREQUAL "AIX" AND
CMAKE_SYSTEM_PROCESSOR MATCHES "powerpc")
set(bigTocFlag "-Wl,-bbigtoc")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux" AND
CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64")
set(bigTocFlag "-Wl,--no-multi-toc")
endif()
if(bigTocFlag)
include(CheckCXXLinkerFlag)
check_cxx_linker_flag(${bigTocFlag} BIG_TOC_FLAG_SUPPORTED)
if(BIG_TOC_FLAG_SUPPORTED)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${bigTocFlag}")
endif()
endif()
if (CMAKE_CXX_COMPILER_ID STREQUAL SunPro AND
NOT DEFINED CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION)
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.13)
if (NOT CMAKE_CXX_STANDARD OR CMAKE_CXX_STANDARD EQUAL 98)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++03")
elseif(CMAKE_VERSION VERSION_LESS 3.8.20170502)
# CMake knows how to add this flag for compilation as C++11,
# but has not been taught that SunPro needs it for linking too.
# Add it in a place that will be used for both.
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
endif()
else()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -library=stlport4")
endif()
endif()
foreach(lang IN ITEMS C CXX)
# Suppress warnings from PGI compiler.
if (CMAKE_${lang}_COMPILER_ID STREQUAL "PGI")
set(CMAKE_${lang}_FLAGS "${CMAKE_${lang}_FLAGS} -w")
endif()
endforeach()
# use the ansi CXX compile flag for building cmake
if (CMAKE_ANSI_CXXFLAGS)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_ANSI_CXXFLAGS}")
endif ()
if (CMAKE_ANSI_CFLAGS)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${CMAKE_ANSI_CFLAGS}")
endif ()
# Allow per-translation-unit parallel builds when using MSVC
if(CMAKE_GENERATOR MATCHES "Visual Studio" AND
(CMAKE_C_COMPILER_ID MATCHES "MSVC|Intel" OR
CMAKE_CXX_COMPILER_ID MATCHES "MSVC|Intel"))
set(CMake_MSVC_PARALLEL ON CACHE STRING "\
Enables /MP flag for parallel builds using MSVC. Specify an \
integer value to control the number of threads used (Only \
works on some older versions of Visual Studio). Setting to \
ON lets the toolchain decide how many threads to use. Set to \
OFF to disable /MP completely." )
if(CMake_MSVC_PARALLEL)
if(CMake_MSVC_PARALLEL GREATER 0)
string(APPEND CMAKE_C_FLAGS " /MP${CMake_MSVC_PARALLEL}")
string(APPEND CMAKE_CXX_FLAGS " /MP${CMake_MSVC_PARALLEL}")
else()
string(APPEND CMAKE_C_FLAGS " /MP")
string(APPEND CMAKE_CXX_FLAGS " /MP")
endif()
endif()
endif()
# Get rid of excess -Wunused-but-set-variable on release builds with LCC >= 1.26
foreach(l IN ITEMS C CXX)
if(CMAKE_${l}_COMPILER_ID STREQUAL "LCC" AND NOT CMAKE_${l}_COMPILER_VERSION VERSION_LESS 1.26)
foreach(c IN ITEMS MINSIZEREL RELEASE RELWITHDEBINFO)
string(APPEND "CMAKE_${l}_FLAGS_${c}" " -Wno-unused-but-set-variable")
endforeach()
endif()
endforeach()
|
